Crossbeam Bearing Clamp for Adjustable Agricultural Frames
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Solution Overview
Problem
Existing agricultural machines face issues with the connection between the support frame and crossbeam, particularly due to play in positive-fit connections, leading to high loads and operational safety concerns, and lack of adaptability in welded connections.
Innovation Solution
A clamping connection between the shell element and compensating body is used to brace the bearing device with the crossbeam, allowing for a force-fit and reversible attachment, enabling easy repositioning and adaptation of the crossbeam relative to the support frame, while compensating for size and shape tolerances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a positive-fit connection is used between the compensating body and crossbeam, then the connection is simple to manufacture, but play occurs between components leading to high loads and reduced operational safety
Solution Approach 1:
A clamping connection is introduced as an intermediary mechanism between the compensating body and crossbeam. This clamping connection eliminates play while maintaining manufacturing simplicity, resolving the contradiction between ease of manufacture and operational safety.
Solution Approach 2:
The connection parameters are changed from a rigid positive-fit connection to a clamping connection that allows for controlled movement and elimination of play. This parameter change maintains manufacturing simplicity while improving operational safety by eliminating harmful play.
2Strength
If a welded connection is used between the compensating body and crossbeam, then the connection is strong and stable, but adaptability is lost as subsequent position adjustments are no longer possible
Solution Approach 1:
The connection is designed to be dynamically adjustable rather than statically fixed. The clamping connection allows the crossbeam to be repositioned along the longitudinal axis while maintaining a strong connection, enabling both strength and adaptability.
Solution Approach 2:
The connection system is segmented into adjustable components that can be repositioned independently. This segmentation allows the crossbeam to be moved to different positions while maintaining a strong clamping connection, resolving the contradiction between connection strength and adaptability.
3Device complexity
If the crossbeam position is fixed relative to the support frame, then the machine structure is simple, but flexibility in adapting to varying arable land conditions is reduced
Solution Approach 1:
The crossbeam position is made dynamically adjustable along the longitudinal axis of the support frame. This dynamic capability allows the machine to adapt to varying arable land conditions while maintaining relatively simple machine structure through the use of a sliding and clamping mechanism.
Data Source
AI summary
Agricultural machine comprising at least one support frame associated with the machine with at least one receptacle for at least one crossbeam aligned at least substantially to be transverse to a direction of travel of the machine, as well as at least one bearing device by way of which the crossbeam is arranged at the receptacle to be rotatable at least in part about its longitudinal axis, wherein the bearing device comprises at least one shell element which, when viewed in particular in the circumferential direction, comprises an outer side facing the receptacle and an inner side facing the crossbeam, wherein at least one compensating body by way of which the crossbeam is connected in a rotationally fixed manner to the bearing device, in particular to the shell element, is arranged between the inner side and the crossbeam. In order to obtain a particularly variable connection between the bearing device and the crossbeam, it is provided that the shell element and the compensating body are configured such that the bearing device, in particular the shell element and/or the compensating body, in an assembled state, is/are braced with the crossbeam, in particular in a force-fit manner and/or in the manner of a clamping connection.